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A 37-year-old Modesto man received a 10-year federal prison sentence for conspiracy to distribute fentanyl and methamphetamine through dark web marketplaces.
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Devlin Hosner and his co-conspirator, Holly Adams, sold fentanyl-laced counterfeit pills and meth online, laundering hundreds of thousands of dollars through cryptocurrency mixers and digital wallets.
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Even after law enforcement executed an initial search warrant in 2021, the two resumed selling drugs on the dark web, unaware that federal agents were still watching.
A Modesto man who built a lucrative drug operation on the dark web is heading to federal prison. Devlin Hosner, 37, received a 10-year sentence for conspiracy to distribute fentanyl and methamphetamine. The U.S. Attorney’s Office for the Eastern District of California announced the sentencing on Tuesday.
Hosner ran the operation alongside Holly Adams, 36. Together, they sold fentanyl-laced fake oxycodone drugs and methamphetamine through dark web platforms, pulling in hundreds of thousands of dollars. The pair then laundered that money through cryptocurrency mixers, digital wallets, and other online tools designed to hide the trail.
How the Operation Unraveled
Law enforcement first moved against Hosner and Adams in September 2021, executing a search warrant at their location. Prosecutors said the two immediately attempted to destroy evidence by dissolving pills in a chemical solution. Agents arrested both suspects, but authorities later released them.
That release turned out to be a costly mistake for the duo. Hosner and Adams went straight back to selling fentanyl on the dark web, completely unaware that federal investigators were still building a case against them. The operation continued until agents closed in again.
In March 2022, federal agents executed a second search warrant at a Riverside County hotel where Hosner and Adams were staying. That raid produced 60 grams of methamphetamine and nearly a kilogram (kg) of fentanyl-pressed substances. The evidence was enough to seal the case against both defendants.
The Charges and What They Cost Both Defendants
Hosner, in December 2024, pleaded guilty. The court sentenced him to 10 years in federal prison. Adams entered her guilty plea earlier, in July 2024, and the court handed her an even steeper sentence of 12 years.
The case reflects a wider pattern that federal prosecutors are aggressively targeting. Dark web drug markets have become a major pipeline for counterfeit pills laced with fentanyl, a synthetic opioid far more potent than heroin.
Dealers operating on these platforms often use cryptocurrency to obscure payments and avoid detection, but federal investigators have grown increasingly effective at tracing those digital transactions.
This pattern continues with other prosecutions. A US man recently pleaded guilty to running a multi-state dark web drug ring — showing how federal authorities are systematically dismantling these operations.
Fentanyl-pressed pills are especially dangerous because manufacturers design them to look identical to legitimate prescription medication. Buyers frequently have no way of knowing what dosage they are actually consuming, which makes every pill a potential overdose risk.
What the Sentencing Signals
The sentences handed to Hosner and Adams send a clear message from federal authorities. Dark web anonymity does not guarantee protection from prosecution. Even after an initial arrest and release, federal agents continued their surveillance and built a stronger case the second time around.
Cryptocurrency laundering, once seen as a near-foolproof method of concealing drug proceeds, continues to fail defendants in federal court. Investigators now possess the tools and expertise to follow digital money trails that criminals once considered untraceable.
For Hosner, a drug operation that once generated hundreds of thousands of dollars has now cost him a decade of his life. For Adams, it cost her even more.
